678983 has 8 divisors (see below), whose sum is σ = 723168. Its totient is φ = 636064.

The previous prime is 678971. The next prime is 678989. The reversal of 678983 is 389876.

678983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 678983 - 2¹⁰ = 677959 is a prime.

It is a super-2 number, since 2×678983² = 922035828578, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 678983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941 + ... + 1497.

It is an arithmetic number, because the mean of its divisors is an integer number (90396).

2⁶⁷⁸⁹⁸³ is an apocalyptic number.

678983 is a deficient number, since it is larger than the sum of its proper divisors (44185).

678983 is a wasteful number, since it uses less digits than its factorization.

678983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633.

The product of its digits is 72576, while the sum is 41.

The square root of 678983 is about 824.0042475619. The cubic root of 678983 is about 87.8927325918.

It can be divided in two parts, 678 and 983, that added together give a palindrome (1661).

The spelling of 678983 in words is "six hundred seventy-eight thousand, nine hundred eighty-three".